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[Bug middle-end/34852] [4.3 Regression] Revision 131576 miscompiled 178.galgel
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Jan 2008 20:53:05 -0000
- Subject: [Bug middle-end/34852] [4.3 Regression] Revision 131576 miscompiled 178.galgel
- References: <bug-34852-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #16 from hjl dot tools at gmail dot com 2008-01-21 20:53 -------
(In reply to comment #15)
> Subject: Re: [4.3 Regression] Revision 131576 miscompiled 178.galgel
>
> > I tried -mpc64. It also works.
> I would declare this a proof that it is extra preccision issue and
> simply update testers to use -mpc64. It is what most of other compilers
> do anyway and thus we would get more comparable scores. Thanks a lot for
> testing it (I've scheduled same test for tonight, but you've beaten me.
> I still will try if it works for -mfpmath=sse case too)
>
With the -march=native patch:
http://gcc.gnu.org/ml/gcc-patches/2008-01/msg00969.html
-funroll-loops -fpeel-loops -ffast-math -march=native -mtune=native
-mfpmath=sse
works for me.
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34852